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Identifying feature

Green roof

A roof covered with soil and growing plants laid over a waterproof membrane, a sealed layer that keeps water out. Sod roofs are traditional in Scandinavia, and Germany developed modern versions.

a sign of these styles

Borgund Stave Church, Borgund, Norway: an example of Scandinavian Vernacular Scandinavian Vernacular c. 1000–present Log and carved timber buildings under steep roofs, sometimes topped with turf, painted deep red. Bosco Verticale, Milan, Italy: an example of Sustainable / Green Sustainable / Green c. 1990–present Performance made visible: planted roofs and walls, sun-shading fins, solar panels, and exposed timber structure.

also seen on

Contemporary Modern

often seen with

Curtain wall An outer wall of glass and metal panels hung on a building's steel or concrete frame, carrying only its own… Exposed structure A building's frame, beams, trusses (triangles of linked beams), pipes or ducts left visible instead of… Flat roof A roof that is level or nearly level, often edged by a low wall called a parapet. Ribbon window A continuous horizontal row of windows across a facade, separated only by thin mullions (upright bars). Cantilever A beam, floor or part of a building that projects beyond its support and is anchored at only one end. Carved wood ornament Decorative shapes cut into a building's wooden parts, such as brackets (supports under the eaves), porch… Clapboard siding Long, narrow horizontal wooden boards called clapboards, each overlapping the one below, nailed over a wood… Deep eave overhang Roof edges, called eaves, that extend well beyond the walls.